Improvement in apparatus for lighting railway-cars



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Appfirtus for Lighting Railway-Cars" Phi-162,946. PatentedMay4,18 7.

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B PIN-[SCH- QShGtP-SheQtZ A paratus fur Llghting Railway-'ca PatentedMay 4,1875.

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PATEN on.

RICHARD PINTSGH, OF BERLIN, PRUSSIA.

IMPROVEMENT IN APPARATUS FOR LIGHTING RAILWAY-CARS.

Specification forming part of Letters Patent No. 162,946, dated May 4,1870; application filed October 31, 1874.

To all whom it may concern:

Be it known that I, RICHARD PINISOH, of the city of Berlin, in theKingdom of Prussia, have invented certain Improvements in Apparatus forLighting Railroad-Oars with Gas; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings making a part of the same.

My invention relates to improvements in apparatus for lighting railwayand other cars with gas, the-object of my invention being to enable eachcar to carry, in a compact form,

sufficient gas to light the lamps thereof for a 7 longer period thanheretofore, while, at the same time, each car is perfectly independentof any other car of a train, thereby enabling such car to bedisconnected from one train and coupled to another without in any wayaffecting the gas-supply.

In carrying out my invention I employ gas of the highest illuminatingpower produced from oil. This gas is then forced, under pressure of fromfive to six atmospheres, into a reservoir or holder placed, bypreference, beneath the body of the car. This reservoir is, by means ofa pipe or pipes, connected to a regulator or graduator, hereinafterdescribed, for the purpose of graduating and regulating the pressure andflow of the gas passing to the burners by another pipe or pipes leadingfrom the regulator or graduator to the burners.

But that my invention may be fully understood I will proceed to describethe same in detail by aid of the accompanying drawings;

Figure 1 represents a sectional view of a railwaycar with myimprovements applied thereto. Fig. 2 is a vertical section, and Fig. 3 apartial plan, of my improved regulator on a larger scale. Figs. 4 and 5are detail views of parts of the same.

Similar letters of reference are employed to indicate correspondingparts wherever they occur.

A represents the gas reservoir or holder, which is supported beneath thebody of the car. From this reservoirA a pipe, A passes to the regulatorB, after passing through which the gas is conducted, by a pipe, B to theburners arranged in the lamp 0, supported in the roof of the car. Thecase or frame of the regulator B is, by preference, formed of two maincastings, b N, the lower portion, 1), being cast in the form of a basin,while the upper portion, 11 is annular, and provided with a flange orrim, 12 for the purpose of connecting the apparatus to the car by meansof screw-bolts passed through holes b in the same, or by clamps or othersuitable means. The upper portion of the ring 12 is provided with acover, 12 fitted. air and gas tight over a flange, 1), extending roundthe upper side of the part 12 thereby securely inclosing the mechanismof the regulator contained within the casing 11 b as hereinafterexplained. I) is a second flange formed on the inner periphery of thepart b for the purpose of receiving a metallic ring, 1), across which ascreen, I)", is distended, for the purpose of keeping any dust or dirtfrom the interior mechanism which may pass in with the air admittedthrough the apertures b in the part N, which are formed for the purposeof equalizing the atmospheric pressure above such diaphragm. a is a cap,in which is formed the inlet-passage to the regulator B. This cap a istapped at A to receive the end of the pipe A and, by means of screws ais connected to the flange a of the tube a which is provided with ascrewthread on its periphery, for the purpose of holding the tube a inposition in the casting I). a is a projecting nipple, which fits closelyinto the contracted mouth a of the tube a for the purpose of forming aperfect joint at the junction of the parts, and preventing the action ofthe gas on the washer placed between the same. Within the tube a achamber, a is formed for the reception and retention of any dust or dirtentering from the inlet-pipe A. This chamber a at each end, is providedwith a reticulate screen, a a so arranged that any dust or dirt passingthrough the screen a shall impinge against the screen a and by thatmeans be prevented from passing to the interior of the regulator B. Itwill be evident from the construction of the parts that as soon as thechamber a becomes clogged by dust or dirt the same may be readilyremoved and cleansed. c is the main casting or body, in which is formedthe chamber 0 for a valve, (1, the valve-seat c and also a passage, 0 tosuch valve-chamber from the passage to from the dust-chamber a to thevalve-chamber 0 The valve d, at its upper end (1 is conical, while itsstem is formed with projections d leaving a series of channels, (1 forthe passage of gas to the upper part of the valvechamber 0 On the underside of the stem of the valve (1 a semi-oval aperture, 01 is formed forthe reception of the upper end of, a supporting-rod, e the lower end ofwhich is received into a correspondingly-shaped recess in an adjustablescrew-bearing, 6 carried by the lever e. The lever e, at e is pivoted tothe casting a, while, at its opposite end, it is, by pin-joint,connected to the lower end of a link, a, the upper end of which ispivoted to the under side of a screw-bolt, f which passes through thecenter of and, by means of washers f f and a nut, f embraces adiaphragm, f, which is distended across the upper part of theregulator-chamber by means of its periphery f being embraced and heldfirmly between the parts I) b by means of the rim b and theretaining-screws b which hold the parts I) I) together. g is a compoundcounterbalance-spring formed of two layers of watchspring. This spring9, at one end, is connected to the lever 6 by means of an adjustablescrew-clip, g, in order that the pressure of the spring on the lever 0may be readily adjusted, while its opposite end works in a forkedbearing, h, affixed to the side of the casting I). The diaphragm f isformed of fine sheep-skin treated by being stretched in a solution ofgutta-percha and grease.

The casting c, in which is the chamber 0 I form of bronze, while thevalve d and its stem I construct of an amalgam composed of eightysix percent. tin, five per cent. copper, and nine per cent. antimony. Theobject of employing this amalgam for the valve and bronze for thecasting a is, that they are the only metals that I am enabled to employin the construction of these parts that will Work together without beingso affected by the action of the gas and dust and dirt as to destroy theoperation of the parts in a very short time. The composition ofthe valveand chamber may be reversed, if desired.

The operation of the apparatus is as follows: The reservoir A being dulycharged with gas, the same is allowed to escape through the pipes A tothe dust-chamber a, through which it passes to the passage 0 and fromthence to the valve-chamber 0 through which it passes, by the channelsWin the valve-stem, to the interior of the regulator-cham her, where itacts upon to lift the diaphragm fin. proportion. to the pressure of thegas. If the pressure is high it will lift the diaphragm in proportion,and in so doing raise the lever e and valve (1, so as to moreor lessclose the gas-inlet, and thereby regulate the supply, and consequentlythe pressure of the gas passing out of the regulator by the outlet B tothe supply-pipe 13 leading to the burners O.

The dotted lines in Fig. 2 represent the parts in the position they willassume when the valve is closed, while the same parts are shown by fulllines in the position they assume when the valve is open.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, in apparatus for lighting railway and other cars withgas, is

1. The combination, with a reservoir or holder in which gas is containedat a high pressure, of a regulator, B, constructed with a main case orcastings, b b, cover b dustchamber a, valve 0 d, levers e a, spring 9,and diaphragm f, constructed and operating substantially as and for thepurpose described.

2. The valve d, provided with a seat or aperture, d in combination witha supporting-' rod, 6, and a lever, 0, provided with an adjustable seator recess in a bearing, 0 substantially as described.

3. The combination, with the valve cl, supporting-rod e, and lever 0, ofthe adjustable

